Microeconomics · 免费预览
收入效应与替代效应
价格变化通过两个渠道改变所选消费组合：该商品变得相对便宜，预算约束也放松了；将二者区分开来，可以解释正常品、低档品以及罕见的向上倾斜的需求。
1. One price change, two forces
One price change, two forces
2. Seeing the split
Seeing the split
3. Giffen goods, the theoretical extreme
Giffen goods, the theoretical extreme
4. Why the decomposition earns its keep
Why the decomposition earns its keep
5. Identifying the effects
The price of movie tickets falls while income is unchanged. Which statement correctly describes the substitution and income effects on movie attendance for a typical consumer?
6. An inferior good's price falls
Instant noodles are an inferior good that occupies a small budget share. When the price of noodles falls, what happens to noodle consumption?
7. The voucher arithmetic
A household receives a 60 dollar food voucher, and studies show that for every dollar of such aid, food spending rises by 30 cents, with the rest going to other goods. Compute the rise in food spending in dollars and write the number.
8. A normal good gets cheaper
The price of a normal good falls while money income is unchanged. What do the substitution and income effects do to its quantity demanded?
9. The Giffen recipe
Which combination of properties would make a good a candidate for Giffen behavior, demand rising as its own price rises?
10. Spending the voucher
A household receives a 60 dollar food voucher and raises food spending by 30 dollars beyond its usual budget. Compute the marginal propensity to consume food out of the voucher, and write the number.